Best Medicare Plans in Illinois 2026 — Complete Guide
What are the best Medicare plans in Illinois in 2026? Illinois has over 2.1 million Medicare beneficiaries and one of the most competitive Medicare markets in the Midwest anchored by the massive Chicago metropolitan area. Illinois is home to some of the world’s most renowned healthcare institutions including Northwestern Medicine, Rush University Medical Center, University of Chicago Medicine, and Advocate Aurora Health — all of which participate in Medicare networks and attract excellent Medicare Advantage plans. Finding the best Medicare plans in Illinois in 2026 requires understanding the significant difference between the highly competitive Chicago market and the more limited options in rural downstate Illinois. In this complete guide we break down the best Medicare plans in Illinois in 2026 so Illinois seniors can make the most informed Medicare decisions possible. All information is sourced from Medicare.gov and CMS.gov.
Also Read- How Much Does Medicare Cost Per Month in 2026 — Complete Breakdown
What You Will Learn — Best Medicare Plans in Illinois 2026
- Why Illinois has strong Medicare plan options in 2026
- The best Medicare Advantage plans in Illinois 2026
- The best Medicare Supplement plans in Illinois 2026
- Illinois Medicare costs in 2026
- Chicago vs downstate Illinois Medicare differences
- Free Medicare help in Illinois — SHIP program
- Frequently asked questions about the best Medicare plans in Illinois 2026
Why Illinois Has Strong Medicare Plan Options in 2026
Illinois offers strong Medicare plan options in 2026 for several important reasons.
Illinois has over 2.1 million Medicare beneficiaries — one of the largest Medicare populations in the Midwest. Chicago is the third largest city in the United States and the Chicago metropolitan area creates one of the most competitive Medicare Advantage markets in the country.
Illinois is home to world-class healthcare institutions that participate in Medicare networks. Northwestern Medicine consistently ranks among the top hospitals in the United States. Rush University Medical Center is a nationally recognized academic medical center. University of Chicago Medicine is a world-class research hospital. Advocate Aurora Health is one of the largest health systems in the Midwest. These institutions attract premium Medicare Advantage plans to the Chicago market.
Illinois has competitive Medigap premiums that are generally near the national average — making Plan G a solid value for Illinois seniors who want comprehensive predictable coverage.
However Illinois also has significant rural areas — particularly downstate Illinois — where Medicare Advantage plan availability is more limited. Rural Illinois seniors often find Original Medicare with Medigap Plan G is their best option.
Illinois’s SHIP program — Senior Health Insurance Program — provides excellent free Medicare counseling throughout the state.
Best Medicare Advantage Plans in Illinois 2026
Illinois has exceptional Medicare Advantage competition in the Chicago metropolitan area. Here are the best Medicare Advantage plans in Illinois in 2026:
UnitedHealthcare AARP Medicare Advantage Illinois 2026
UnitedHealthcare is one of the largest Medicare Advantage providers in Illinois and consistently offers some of the best Medicare plans in Illinois. UnitedHealthcare Medicare Advantage plans in Illinois in 2026 typically offer:
- $0 monthly premium plans in Chicago and major Illinois markets
- Renew Active fitness benefit included
- Comprehensive dental up to $3,000 annual maximum
- Vision and hearing coverage included
- Strong networks in Chicago and surrounding Illinois markets
- 4 to 4.5 star Medicare ratings
- Prescription drug coverage included
- Part B premium reduction on select plans
UnitedHealthcare has the strongest statewide Medicare Advantage network in Illinois making it the best Medicare plan for Illinois seniors who want consistent coverage across the state.
Humana Medicare Advantage Illinois 2026
Humana offers competitive Medicare Advantage plans throughout Illinois in 2026:
- $0 monthly premium plans in major Illinois markets
- SilverSneakers fitness membership
- Dental coverage up to $2,500 annual benefit
- Vision and hearing coverage included
- Strong networks in Chicago metropolitan area
- Good Medicare star ratings in Illinois
- Prescription drug coverage included
- OTC allowance quarterly
Aetna Medicare Advantage Illinois 2026
Aetna offers competitive Medicare Advantage plans throughout Illinois in 2026:
- $0 monthly premium plans in Illinois markets
- CVS pharmacy preferred network
- MinuteClinic access at low or $0 copay
- SilverSneakers fitness benefit
- Dental, vision, and hearing benefits included
- 24/7 telehealth through CVS Health Virtual Care
Blue Cross Blue Shield of Illinois Medicare Advantage 2026
Blue Cross Blue Shield of Illinois — BCBSIL — is one of the most trusted insurance brands in the state and offers Medicare Advantage plans throughout Illinois:
- Most recognized Illinois insurance brand
- $0 to low premium plans throughout Illinois
- Strong provider networks statewide
- Dental, vision, and hearing benefits included
- Prescription drug coverage included
- Strong relationships with major Illinois health systems
- Good Medicare star ratings in Illinois markets
BCBSIL is an excellent Medicare Advantage choice for Illinois seniors who want to stay within a familiar trusted insurance network with strong relationships with Illinois healthcare providers including Northwestern Medicine and Advocate Aurora Health.
Cigna Medicare Advantage Illinois 2026
Cigna offers strong Medicare Advantage plans in Chicago and surrounding Illinois markets in 2026:
- $0 monthly premium plans in covered Illinois markets
- Healthy Today OTC allowance card
- Dental and vision benefits included
- Prescription drug coverage included
- Good network in Chicago metropolitan area
Centene Medicare Advantage Illinois 2026
Centene — through its Illinois subsidiary — offers Medicare Advantage plans particularly for dual eligible seniors and lower income beneficiaries in Illinois:
- $0 premium plans for qualifying seniors
- Strong Medicaid integration for dual eligible Illinois members
- Competitive benefits in covered Illinois counties
Best Medicare Supplement Plans in Illinois 2026
For Illinois seniors who prefer Original Medicare with a Medigap supplement Illinois offers strong competitive options in 2026.
Best Medicare Supplement Plan in Illinois — Plan G
Medigap Plan G is the best Medicare Supplement plan for most Illinois seniors in 2026. After paying the $257 annual Part B deductible Plan G covers 100% of all Medicare-approved costs. Plan G is particularly valuable for Illinois seniors who want access to world-class healthcare systems like Northwestern Medicine and Rush University Medical Center without network restrictions.
Average Medigap Plan G costs in Illinois in 2026:
- Age 65 — $115 to $195 per month
- Age 70 — $140 to $230 per month
- Age 75 — $165 to $265 per month
Illinois has competitive Medigap Plan G premiums that are generally near the national average making Plan G a solid value for Illinois seniors who want comprehensive predictable coverage.
Top Medicare Supplement Plan G providers in Illinois in 2026:
- AARP UnitedHealthcare — largest Medigap provider with strong Illinois presence
- Blue Cross Blue Shield of Illinois — most trusted Illinois brand
- Mutual of Omaha — consistently competitive pricing in Illinois
- Humana — competitive rates in Illinois markets
- Aetna — competitive pricing throughout Illinois
Medigap Plan N in Illinois 2026
Medigap Plan N offers lower premiums than Plan G in Illinois with up to $20 doctor visit copays.
Average Medigap Plan N costs in Illinois in 2026:
- Age 65 — $85 to $155 per month
- Age 70 — $105 to $185 per month
Chicago vs Downstate Illinois Medicare 2026
Illinois Medicare market varies significantly between Chicago and downstate Illinois.
Chicago and Northeast Illinois Medicare 2026
Chicago and the greater Chicago metropolitan area — including Cook, DuPage, Lake, Will, Kane, and McHenry counties — has one of the most competitive Medicare Advantage markets in the entire United States. Chicago seniors have access to dozens of Medicare Advantage plan options from multiple major insurers all competing vigorously for their enrollment.
The Chicago market is anchored by world-class health systems including Northwestern Medicine, Rush University Medical Center, University of Chicago Medicine, Advocate Aurora Health, and NorthShore University Health System. Most major Medicare Advantage plans include these systems in their Chicago networks.
Chicago is also home to a large and diverse senior population creating strong demand for Medicare plans with comprehensive benefits including dental, vision, and hearing coverage — all commonly available through Chicago-area Medicare Advantage plans.
Downstate Illinois Medicare 2026
Downstate Illinois — including Springfield, Peoria, Rockford, and the vast rural agricultural regions of central and southern Illinois — has fewer Medicare Advantage options than Chicago. The most important healthcare systems in downstate Illinois include OSF Healthcare, Memorial Health System, and HSHS Health System.
For rural downstate Illinois seniors Original Medicare with Medigap Plan G is often the better choice because:
- Medicare Advantage networks may be very limited in rural counties
- Original Medicare provides access to any Illinois Medicare-accepting provider
- Illinois Medigap premiums are competitive making Plan G affordable
- Medigap Plan G works throughout Illinois and nationwide
Illinois Medicare Costs in 2026
Medicare Part A Costs in Illinois 2026
- Monthly premium — $0 for most Illinois seniors
- Hospital deductible — $1,676 per benefit period
Medicare Part B Costs in Illinois 2026
- Standard monthly premium — $185.00 per month
- Annual deductible — $257
Medicare Advantage Costs in Illinois 2026
- Many plans — $0 additional monthly premium
- Out-of-pocket maximum — $9,350 in-network
- Typical primary care copay — $0 to $15
Medicare Supplement Plan G Costs in Illinois 2026
- Monthly premium — $115 to $195 at age 65
- Near national average
Medicare Part D Costs in Illinois 2026
- Average monthly premium — $35 to $65
- Annual out-of-pocket maximum — $2,000
Illinois SHIP — Free Medicare Help
Illinois seniors can get free unbiased Medicare counseling through Illinois SHIP — Senior Health Insurance Program. Illinois SHIP provides free one-on-one Medicare counseling throughout the state through trained volunteer counselors.
Contact Illinois SHIP:
- Call Illinois SHIP — 1-800-548-9034
- Website — insurance.illinois.gov
- Find a local SHIP counselor in your Illinois county
Frequently Asked Questions — Best Medicare Plans in Illinois 2026
What are the best Medicare Advantage plans in Illinois in 2026?
The best Medicare Advantage plans in Illinois in 2026 include UnitedHealthcare AARP, Humana, Aetna, Blue Cross Blue Shield of Illinois, and Cigna. BCBSIL is particularly trusted due to its strong Illinois brand and relationships with major Illinois health systems. UnitedHealthcare has the strongest statewide network. Always compare specific plans in your Illinois county at Medicare.gov.
How much does Medicare cost in Illinois in 2026?
Most Illinois seniors pay $185.00 per month for Medicare Part B. Many Illinois Medicare Advantage plans charge $0 additional premium. Illinois Medigap Plan G premiums range from $115 to $195 per month at age 65 — near the national average.
Does Medicare cover Northwestern Medicine in Illinois?
Original Medicare covers Northwestern Medicine — any Medicare-accepting provider is covered nationwide. For Medicare Advantage coverage you must verify that your specific plan includes Northwestern Medicine providers before enrolling. Most major Medicare Advantage plans in Chicago include Northwestern Medicine but always confirm before enrolling.
What is Illinois SHIP?
Illinois SHIP — Senior Health Insurance Program — is Illinois’s free Medicare counseling program. Illinois SHIP provides free one-on-one Medicare counseling to Illinois seniors through trained volunteers. Call Illinois SHIP at 1-800-548-9034 for free help comparing Medicare plans.
Is Medicare Advantage or Medigap better for Illinois seniors?
Both are good options depending on your situation. Medicare Advantage is often better for Chicago-area seniors who want lower premiums and comprehensive benefits. Original Medicare with Medigap is often better for rural downstate Illinois seniors where Medicare Advantage networks may be limited and for seniors who want access to any Illinois Medicare provider without network restrictions.
Summary — Best Medicare Plans in Illinois 2026
Illinois seniors in 2026 have access to strong Medicare plan options — particularly in the highly competitive Chicago metropolitan area. The best Medicare plans in Illinois include competitive $0 premium Medicare Advantage plans from UnitedHealthcare, Humana, Aetna, and Blue Cross Blue Shield of Illinois — and competitive Medigap Plan G options throughout the state.
Use the free plan finder at Medicare.gov to compare all Medicare plans in your Illinois zip code. For free personalized help contact Illinois SHIP at 1-800-548-9034 or call Medicare free at 1-800-633-4227.
This guide is for informational purposes only and is not medical or financial advice. Always verify current Medicare plan details at Medicare.gov before making enrollment decisions.
Sources: Medicare.gov | CMS.gov | Illinois SHIP | AARP.org
Last updated: April 2026 | Author: James Carter, Independent Medicare Research Analyst
